Description: 用小波多尺度分析进行基于医学图像形状特征的检索.-wavelet multiscale analysis based medical image retrieval features of the shape. Platform: |
Size: 1024 |
Author:江兰 |
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Description: 对输入图像进行预处理后提取目标轮廓，经过归一化处理得到目标形
状的平移、尺度不变的链状表达，再通过小波变换进行多尺度分析；引入Zernike 矩，利用Zernike
矩的特性，实现小波表达的旋转不变性，解决了小波变换对起始点的依赖。-right to import images from pretreatment profile targets, after processing to be a target shape translation, The scale-invariant chain expression, and through the wavelet transform multi-scale analysis; introduction Zernike moment, use Zernike moments, wavelet achieve expression of rotation invariance, solve the wavelet transform the dependence of the threshold. Platform: |
Size: 1263616 |
Author:李杰 |
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Description: 一个多径信道仿真程序。其主程序为：
Jakes_filter.m 产生信道多普勒功率谱形状
linear_fft.m作fft变换，并作相应平移。
linear_psd.m分析信号的psd
qpsk_berest.m产生qpsk信号
random_binary产生随机信号源-a multi-path channel simulation program. Its main program : Jakes_filter.m have access Doppler power spectral shape linear_fft.m for f ft transform, and for the corresponding translation. Linear_psd.m analysis of the signals generated psd qpsk_berest.m letter qpsk No. random_binary generated random signal source Platform: |
Size: 5120 |
Author:周智 |
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Description: ZK矩的计算程序，有MATLAB和C语言两部分。ZK矩在形状识别和分析中有重要应用，可以在特征参数提取中经常使用。-ZK moment calculation procedure, MATLAB and C language has two parts. ZK moments in shape recognition and analysis has important applications, feature extraction can be often used. Platform: |
Size: 6144 |
Author:liufeng |
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Description: 利用傅里叶描述子进行物体形状分析：
对于一个物体的边缘即形状来说，可将其看作是平面在空间坐标系下的点集构成的闭合曲线，这样就可用周期函数来描述其外形，可以进行离散傅里叶变换，将图像由空域表示转换到频域表示，变换后的函数可由傅里叶变换系数来描述。对于数字图像的频谱来说，低频分量的分布反映了图像主体的基本形状，高频分量的分布反映图像的细节-Fourier descriptors for object shape analysis: For the edge of an object or shape, it can be regarded as the plane in the space coordinates of the point set consisting of closed curves, so that periodic function can be used to describe its shape , can be discrete Fourier transform, the image from the airspace, said the conversion to the frequency domain that function can be transformed to describe the Fourier transform coefficients. For digital images of the spectrum, the distribution of low-frequency components reflect the basic shape of the main images, high-frequency component of the distribution reflects the image details Platform: |
Size: 11264 |
Author:吴亚鹏 |
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Description: 图象 处 理和模式识别中经常根据物体的形状来识别物
体或对物体进行分类。形状特征可以分为区域特征和边界特
征两大类，矩不变量是最基本的形状特征。Hu提出的矩不变
量是图象区域内部细节的描述，是一种区域特征。它是建立
在对一个区域内部灰度值的统计分析基础上的，需要目标区
域的所有象素参与运算-Image processing and pattern recognition are often based on the shape of objects to identify objects or to classify objects. Shape characteristics and regional characteristics can be divided into two major categories of border characteristics, moment invariants is the most basic features of the shape. Hu moment invariants proposed by the image region is described in detail, the characteristics of a region. It is based on a gray value of region on the basis of statistical analysis, the needs of the target region to participate in all-pixel operations Platform: |
Size: 653312 |
Author:martin |
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Description: 表面缺损检测对保证产品的使用性能、完整性和安全性具有重要意义 本文将表面
缺损类型总结为结构缺损、几何缺损、颜色缺损和纹理缺损等几类，并进行特征分析。在此基础上，从基于灰度特征、形态特征、色度特征和纹理特征等几方面对表面缺损的图像检测方法进行综-Surface defect detection products to ensure the use of performance, integrity and security will be of great significance to this article summed up the type of surface defect structure of defects, defect geometry, color and texture defects, such as several types of defects, and analysis. On this basis, from the gray-scale-based features, shape features, color features and texture features, such as several images of the surface defect detection method for fully mechanized Platform: |
Size: 391168 |
Author:wangzhongmei |
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Description: Lip image analysis has attracted much interest in
recent years because some important speech information is
contained in the shape and movement of the lip. To extract
such information from the lip images, accurate and robust
lip region segmentation is of vital importance. However,
most of the current lip segmentation methods fail to provide
accurate results if the person has beards. Platform: |
Size: 93184 |
Author:vikas |
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Description: 这是一种基于密度的聚类分析算法，可以发现任意形状的簇，可以发现噪声点。-This is a density-based clustering analysis algorithm can find clusters of arbitrary shape can be found noise points. Platform: |
Size: 2048 |
Author:dys |
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Description: ASM是由Cootes和泰勒推出的多分辨率方法的一个例子。
基本思想：
在ASM模型训练，训练从手工绘制的图像轮廓。发现的ASM模型在训练使用主成分分析（PCA），使该模型自动识别数据的主要变化是，如果可能的轮廓/好的对象的轮廓。还包含了ASM模型的协方差矩阵描述行垂直纹理口岸时，在正确的位置。
-Description This is an example of the basic Active Shape Model (ASM) as introduced by Cootes and Taylor, with multi-resolution approach.
Basic idea:
The ASM model is trained from manually drawn contours in training images. The ASM model finds the main variations in the training data using Principal Component Analysis (PCA), which enables the model to automatically recognize if a contour is a possible/good object contour. Also the ASM models contains covariance matrices describing the texture of the lines perpendicular to the control points when in the correct positions.
After creating the ASM model, an initial contour is deformed by finding the best texture match for the control points. This is an iterative process, in which the movement of the control points is limited by what the ASM model recognizes from the training data as a "normal" object contour.
Literature:
- Ginneken B. et al. "Active Shape Model Segmentation with Optimal Features", IEEE Transactions on Medical I Platform: |
Size: 10190848 |
Author:谢冉 |
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Description: 频域的模态参数识别方法之一，可以对振动信号进行分析处理，得出结构的固有频率，阻尼比，振型系数，方法很好，程序完整-Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, methods good integrity of the process Platform: |
Size: 1024 |
Author:zhangmingxing |
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Description: A new approach for fingerprint verification, based on wavelets and pseudo Zernike moments (PZMs), is
discussed. PZMs are robust to noisy images, invariant to rotation and have a good image reconstruction
capability [4]. PZMs have been used for global analysis and so they are used to extract global features (the
shape of the fingerprint image). Wavelets are good at local analysis and so they help to extract local
features (minutiae) from a fingerprint. Therefore, this hybrid approach extracts most significant features
from the fingerprint images and achieve better verification rate. Different types of wavelets are used for the
study but the result shows that Symmlet orthonormal wavelet of order 8 gives best verification rate. Platform: |
Size: 386048 |
Author:samira |
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Description: 实现图像边缘的傅里叶描述子，可用于边缘检测，形状分析。-Matlab achieve image edge of the Fourier descriptors, can be used for edge detection, shape analysis. Platform: |
Size: 4096 |
Author:JUN |
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Description: 数字图像处理matlab实现，包括如下程序：
1.直方图规定化为高斯双峰函数
2.窗口形状自适应（十字形或矩形）的中值滤波
3.彩色图像目标提取并与背景图像合成
4.插值外推法的彩色图像饱和度调整
5.多种插值方法实现的图像放大和缩小
6.频域变换及分析
7.几何校正
8.插值外推法的黑白图像对比度增强
9.运动模糊矫正-Digital image processing matlab realize, including the following procedures: (1) the bimodal histogram specification as a function of two Gaussian shape adaptive window (cross or rectangular) median filtering three color image with the background object extraction and image synthesis 4. Color image interpolation extrapolation saturation adjustment 5. various interpolation methods to achieve images zoom in and out 6. frequency domain transformation and analysis 7. geometric correction 8. interpolation extrapolation of the black and white image contrast enhancement 9. motion blur correction Platform: |
Size: 7168 |
Author:Yan |
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Description: This code is the neural network for global shape otpimization of fuel cell by matlab. Initial design variable value is input with dynamic analysis result. Platform: |
Size: 3072 |
Author:shotgun |
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Description: 用于有限元索膜结构在matlab实现找形分析的主函数(Main function for finite element cable-membrane structure to realize shape-finding analysis in matlab) Platform: |
Size: 11264 |
Author:15061883823@163.com |
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Description: 标准化数据，可以用来进行Bland-Altman and correlation 以及画图(This customizable data analysis tools generates a Bland-Altman and correlation scatter plot. Data can be displayed using color and shape coding of groups using a 2D or 3D matrix notation. Data points can also be displayed using serial numbering, facilitating further interrogation of outliers.
Analysis results (e.g. correlation coefficients, line of best fit, reproducibility coefficient, etc.) can be displayed on the figure. Statistical results are returned as a structured output argument.
An example is included.) Platform: |
Size: 9216 |
Author:杨航的小秘书 |
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Search - shape analysis matlab